package main

import "fmt"

const Books string = "This power station's capacity to store energy is large."

func main() {
	stats := make(map[rune]int)

	for _, i := range Books {
		if i >= 'a' && i <= 'z' || i >= 'A' && i <= 'Z' {
			stats[i]++
		}
		// fmt.Printf("%q", i)
	}
	fmt.Println(stats)
}
